National Item Identification Number

00-220-6495

National Stock Number

Item Name

WASHER,FLAT

Federal Supply Class

5310

Description

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.

Commercial and Government Entity Code (Supplier Data)

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53591

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SCHWITZER ENGINE COMPONENTS
A HOUSEHOLD INTL CO
6040 W 62ND ST
INDIANAPOLIS
IN
46278
317-328-3100

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64104

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DRESSER INC
WAUKESHA ENGINE DIV
15455 DALLAS PKY NO 1100
ADDISON
TX
75001
262-549-2834

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24617

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72582

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MTU DETROIT DIESEL INC
DBA FOREIGN PARENT IS MTU
13400 W OUTER DR
DETROIT
MI
48239
313-592-5826

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Reference Numbers (Part Numbers)

C2331
UC2331
5158359
5158359

Required Categories

MATERIAL
HOLE DIAMETER
PERIPHERAL SHAPE STYLE
OVERALL DIAMETER
CENTER HOLE S

Required Description

STEEL OVERALL
0.812 INCHES NOMINAL
1 ROUND
1.438 INCHES NOMINAL
1 ROUND
1 R